diff options
Diffstat (limited to 'drivers/misc/cardreader/rts5227.c')
| -rw-r--r-- | drivers/misc/cardreader/rts5227.c | 64 |
1 files changed, 54 insertions, 10 deletions
diff --git a/drivers/misc/cardreader/rts5227.c b/drivers/misc/cardreader/rts5227.c index 024dcba8d6c8..5c98e2221889 100644 --- a/drivers/misc/cardreader/rts5227.c +++ b/drivers/misc/cardreader/rts5227.c @@ -170,35 +170,46 @@ static int rts5227_card_power_on(struct rtsx_pcr *pcr, int card) { int err; + if (pcr->option.ocp_en) + rtsx_pci_enable_ocp(pcr); + rtsx_pci_init_cmd(pcr); rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL, SD_POWER_MASK, SD_PARTIAL_POWER_ON); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL, LDO3318_PWR_MASK, 0x02); + err = rtsx_pci_send_cmd(pcr, 100); if (err < 0) return err; /* To avoid too large in-rush current */ - udelay(150); - + msleep(20); rtsx_pci_init_cmd(pcr); rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL, SD_POWER_MASK, SD_POWER_ON); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL, LDO3318_PWR_MASK, 0x06); + + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_OE, + SD_OUTPUT_EN, SD_OUTPUT_EN); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_OE, + MS_OUTPUT_EN, MS_OUTPUT_EN); return rtsx_pci_send_cmd(pcr, 100); } static int rts5227_card_power_off(struct rtsx_pcr *pcr, int card) { - rtsx_pci_init_cmd(pcr); - rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL, - SD_POWER_MASK | PMOS_STRG_MASK, - SD_POWER_OFF | PMOS_STRG_400mA); - rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL, - LDO3318_PWR_MASK, 0X00); - return rtsx_pci_send_cmd(pcr, 100); + if (pcr->option.ocp_en) + rtsx_pci_disable_ocp(pcr); + + rtsx_pci_write_register(pcr, CARD_PWR_CTL, SD_POWER_MASK | + PMOS_STRG_MASK, SD_POWER_OFF | PMOS_STRG_400mA); + rtsx_pci_write_register(pcr, PWR_GATE_CTRL, LDO3318_PWR_MASK, 0X00); + + return 0; } static int rts5227_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage) @@ -348,6 +359,32 @@ static int rts522a_extra_init_hw(struct rtsx_pcr *pcr) return 0; } +static int rts522a_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage) +{ + int err; + + if (voltage == OUTPUT_3V3) { + err = rtsx_pci_write_phy_register(pcr, 0x08, 0x57E4); + if (err < 0) + return err; + } else if (voltage == OUTPUT_1V8) { + err = rtsx_pci_write_phy_register(pcr, 0x11, 0x3C02); + if (err < 0) + return err; + err = rtsx_pci_write_phy_register(pcr, 0x08, 0x54A4); + if (err < 0) + return err; + } else { + return -EINVAL; + } + + /* set pad drive */ + rtsx_pci_init_cmd(pcr); + rts5227_fill_driving(pcr, voltage); + return rtsx_pci_send_cmd(pcr, 100); +} + + /* rts522a operations mainly derived from rts5227, except phy/hw init setting. */ static const struct pcr_ops rts522a_pcr_ops = { @@ -360,7 +397,7 @@ static const struct pcr_ops rts522a_pcr_ops = { .disable_auto_blink = rts5227_disable_auto_blink, .card_power_on = rts5227_card_power_on, .card_power_off = rts5227_card_power_off, - .switch_output_voltage = rts5227_switch_output_voltage, + .switch_output_voltage = rts522a_switch_output_voltage, .cd_deglitch = NULL, .conv_clk_and_div_n = NULL, .force_power_down = rts5227_force_power_down, @@ -371,4 +408,11 @@ void rts522a_init_params(struct rtsx_pcr *pcr) rts5227_init_params(pcr); pcr->reg_pm_ctrl3 = RTS522A_PM_CTRL3; + + pcr->option.ocp_en = 1; + if (pcr->option.ocp_en) + pcr->hw_param.interrupt_en |= SD_OC_INT_EN; + pcr->hw_param.ocp_glitch = SD_OCP_GLITCH_10M; + pcr->option.sd_800mA_ocp_thd = RTS522A_OCP_THD_800; + } |